Sewage-disposal means



March 19, 1929. E. D, LEWIS 1,705,869

sEwAGE DISPOSAL lMEANS Filed Deo. 15, 1927 @vw/tum@ Patented Mar. 19,

EDWARD D. LEWIS, or 111.11m, NEW ironx.

@WAGE-DISPOSAL MEANS.

-Appucauon mea' December 15, 1927. serial no. 240,252.

. The invention aims primarily to` provide a new and improved sewage disposal means in whichpurification takes place before discharge, in which the heavier matter from the `sewage is trapped for use as fertilizer and in which the trapped matter is treated with an insect repellant to prevent flies and other insects from breeding in or feeding on such matter, when exposed.

A further object is to provide novel means for utilizing the carbon monoxide gas from thek exhausty of an internal combustion engine, as. the purifying germ-killing agent for the sewage.

With the foregoing in view, the invention resides in the novel subject matter hereinafter described and'claimed, description being accomplished by reference to the accompanying drawing, which discloses a vertical sectional view partly in elevation of a sewage disposal means constructed in accordance with my invention. .In the drawing above briefly described, the numeral 1 denotes a settling tank having a hopper-like bottom 2 provided with a discharge neck 3- which is equipped with an appropriate gate-valve 4.. Tank 1 is provided with a sewage inlet 5 and with a purified liquid outlet 6, a sewer7 being connected with said inlet while a liquid discharge pipe 8 connects with the outlet. A trap 9 has been shown in this pipe 8 to prevent escape of gas`from the u per ortion of the tank 1, but any other esire provision' may be made for this urpose.

Preferably, e lower portion of the tank 1 yis of greater diameter than its upper portion and the two are joined by a horizontal portion 10 which tends to prevent upward surging of :accumulated4 matter from the hopper 2 during storms when rapid rush of water to the tank 1 takes place, and rapid discharge fromsaid tank. 11 denotes an internal combustion ev e of the type-'which is governor-controll to onlyfire as long as it is running below a predetermined speed, the piston or pistons of said engine merely servinglto draw in air and then expel it through te same opening, when the engine is drifting vbetween explosions. The exhaust pipe 12 of the engine 11 is provided with two branches 13-14, said branch 13 discharging into the up er portion of the-tank 1 while branch 14 discharges at 15 into the sewage `within the sewer .7. This branch 14, embodies a vgas pump 16 driven by any desired means such as a belt 17 and pulleys 18, from the engine 11.

Each time the engine 1l fires, some of the exhaust gas is forced through the branch 14 into the sewage in the sewer 7 and some -of said gas passes through the branch 13, to

accumulate 1n the upper portion of the tank 1. Durmg the intervals at which the engine 11 is not firing, the pump 16 draws the accumulated gas from the tank 1 through the branch 13, and forces it through the branch 14 into the sewage. Thus, as long as the engine is operating, there is a continual discharge of carbon monoxide gas into the sewage in the sewer 7, with the result that all germs in said sewage are killed. Then too, while part of the gas may be absorbed by the liquid, the remainder is entrained with the liquid travel and a ain arrives in the upper portion of the ta 1 for further use.

In the tank 1, the velocity of the germfree sewage, is checked, with the result that the relatively heavy or solid matter 19 settles-upon the bottom 2, whereas'the purified liquid discharges through. the pipe 8. The matter 19 may be removed from time to time by opening the valve 4, and it maybe received in any desired container, for instance a barrel B, a truck, a conveyor, etc. This matter forms efficient fertilizer, and in order to preventl flies and other insects from feeding upon it or breeding in it, it is treated before dlscharge, by an insect-repelling agent. 'Il his agent is in liquid form and is denoted at 20, in a suitable container 21, said container having a .drip outlet 22 through the top or other portion of the tank 1. The liquid 20 may be an appropriate metallic salt and it is of courseheavier than water, so that it will settle through the accumulated liquid in the vtank 1 and will reach the accumulated matter 19, to act upon the latter in the desired capacity.

duction or eddy currents which play back and forth between the brass pipe section 23- and its axis. These currents destroy all germ life andare equally as eicient as the and means for conducting exhaust use of carbon monoxide gas from the engine 11. l However due to expense, the germkilling means 23-24, is only used in emergency, that is, when it sessential to throw engine 11 out of operation.

Whiley excellent results may be obtained from the general construction herein disclosed, it is to be understood that Within the scope of the invention as claimed, variations may be made.

I claim 1. In a sewage disposal means, a sewage container, an internal combustion engine, fas from said engine to said container and discharging it into the liquid within said container, said gas conducting means embodying a pump driven by said engine.

i settling tank, and means for conducting the gas from said tank to saidsewer and discharging it into the sewer-contained liquid.

3. In a sewage disposal means, a settling tank having a liquid inlet and a liquid outlet, a sewer leading to said inlet, an internal rcombustion engine, exhaust gas-conducting means fromsaid engine havlng portions leading to said tank and said sewer respectively, theportion. leading to the sewer being provided with a gas pump delivering toward said sewer, andr driving means for said pump actuated by said engine.

- 4. In a sewage disposal means, a settling tank, a container for an insect-repelling liquid, and a drip outlet Afrom `'said container into said settling tank to so treat the accumulated solid matter therein as to repel ies and other insectswhen said solid matter is removed from the tank.

5. In a sewage disposal means, a settling tank having a relatively small upper portion and a lower portion of greater diameter in ywhich relatively heavy matter collects, said upper and lower portions of the tank being connected'by a horizontal portion to retard upward surging of the accumulated matter from the lower ltoward the upper portion of the tank when rapid passage of liquid takes place from the inlet to the outlet of said tank. r

In testimony-whereof I have hereunto affixed my signature.

EDWARD DUDLEY LEWIS. 

